CONTENTS {continued). 



PAGE 



II. Oil tlie Skeleton of the Marsipobranch Fishes. Part I. The Myxinoids. 



(Myxine and Bdellustoma.) By W. K. Parker, F.E.S. . . . 439 



III. The Direct Influence of Gradual Variations of Temperature upon the 

 Eate of Beat of the Dog's Heart. By H. Newell Martin, M.A., 

 M.D., D.Sc, Professor in the Johns Hopkins University, Baltimore, 

 U.S.A 444 



January 18, 1883. 



I. Preliminary Paper on a Uniform Rotation Machine ; and on the Theory 

 of Electromagnetic Tuning Forks. By E. H. M. Bosanquet, St. 

 John's College, Oxford . . 445 



II. On the Skeleton of the Marsipobranch Fishes. Part II. The Lamprey. 



By W. K. Parkee, F.E.S. . . . . . . .447 



III. On the Infectivity of the Blood and other Fluids in some Forms of 

 Septic Disease, and the reputed occurrence therein of an Increase of 

 Virulence in Successive Inoculations. By Gr. F. Dowde swell, 

 M.A. (Cantab.), F.L.S., F.C.S., &c 449 



January 25, 1883. 



I. On certain Definite Integrals. No. 11. By W. H. L. Eussell, F.R.S. 470 

 II. Internal Eeflexions in the Eye. By H. Frank Newall, B.A. . . 473 



III. Note on the Absorption Spectrum of Iodine in Solution in Cai'bon Disul- 



phide. By Captain Abney, E.E., F.E.S. , and Lieut.-Colonel Festing, 



E.E . . . . . .480 



Lift of Presents . . . . . ... . . . . 482 



Index-v - . . • . • • ... . . . . \ 49$ 



Title and Contents. 

 Obituary Notice : — 



William Newmarch xvii 



Now published. Price 4s. 



CATALOGUE OF THE SCIENTIFIC BOOKS IN THE LIBEAEY OF 

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First Section : — Containing Transactions, Journals, Observations and Eeports 



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